Current research projects

Image Test procedures for electrical components
Image Test rigs for refrigeration and heat pump technology
Image Cryogenic liquid piston pumps for cold liquefied gases like LIN, LOX, LHe, LH2, LNG, LAr
Image Certification of efficient air conditioning and ventilation systems through the new "indoor air quality seal" for non-residential buildings
Image Lifetime prediction of hermetic compressor systems
Image Swirl-free on the move...
Image Low Temperature Measuring Service
Image Verification of storage suitability of cryo tubes
Image Micro heat exchangers in refrigeration
Image Investigation of coolants
Image IO-Scan - Integral measuring optical scanning method
Image Low noise and non metallic liquid-helium cryostat
Image Tensile and compression testing
Image Calibration leak for the water bath leak test
Image Calibration of Low Temperature Sensors
Image Measurement of insulated packaging

You are here:  Home /  Research and Development


IO-Scan - Integral measuring optical scanning method

INNO-KOM

02/2022 - 07/2024

M.Sc. Rebekka Grüttner

+49-351-4081-5314

IO-Scan

Development of a photometric measurement method for determining the air exchange rate in indoor areas

Motivation

  • Cost-effective, real-time assessment of indoor air quality in the form of air exchange rates
  • Verify and optimise the effectiveness of ventilation systems in occupied areas
  • Ability to evaluate aerosol reduction through the interaction of window ventilation, building ventilation system and mobile room air cleaners

Project Objective

  • Self-calibrating measuring system
  • Deviation from previous trace gas measurements should be within 10%.
  • Real-time results can detect and evaluate the influence of changes in the ventilation system during the measurement process
  • Intended measurement depth in the room: 1 m to 50 m

Solution Approach

  • The introduction of mist aerosols into the room air influences the light transmittance to be measured.
  • Transmittance of an air-aerosol mixture and use of measured transmittance to determine air exchange rate
  • Integral real-time optical measurement over individual indoor distances

Your Request

Further Projects - Research and Development

Image

Hydrogen and methane testing field at the ILK

Simultaneously pressures up to 1,000 bar, temperatures down to –253°C

Image

Low noise and non metallic liquid-helium cryostat

Low-noise Magnetic Field Cryostat for SQUID-Applications

Image

Cryostats, Non-Metallic and Metallic

position indenpendent, highest endurance, tiltable for liquid helium and liquid nitrogen

Image

Calibration of Low Temperature Sensors

According to the comparative measurement method